Home / 39,619.37-54,674.25-21,469.70

Finding the Fourth Proportional to 39,619.37, 54,674.25 and 21,469.70

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Solution

The fourth proportional to 39,619.37, 54,674.25 and 21,469.70 is: 29,627.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.37 : 54,674.25 = 21,469.70 : x
  2. Step 2: Convert to fraction form
    39,619.37/54,674.25 = 21,469.70/x
  3. Step 3: Cross multiply
    39,619.37x = 54,674.25 × 21,469.70
  4. Step 4: Simplify right side
    39,619.37x = 1,173,839,745.23
  5. Step 5: Solve for x
    x = 1,173,839,745.23/39,619.37
  6. Step 6: Final answer
    x = 29,627.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.